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Filament Monitor Support #40

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aTunell opened this Issue Jul 14, 2014 · 3 comments

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@aTunell

aTunell commented Jul 14, 2014

I've developed a device to ensure that filament is constantly flowing into the machine properly. If the filament stops flowing for any reason (i.e. empty, clogged, jammed) the print will go into a pause allowing the user to fix the filament issue and then continue the print.

The change that is needed is to use a GPIO as a digital input that is pulled high. When my device alarms, it pulls that line low (to about .5V). Also a 5V and 0V connection are required, but those are not related to firmware.

I'm a EE and have designed this device to protect the GPIO on the motherboard against shorting to a rail.

I'd love it if marlin could support this device. I think it would save a lot of potential failed prints.

Here's the device:
https://sites.google.com/site/tunelldev/home/filamentmonitor
https://www.youmagine.com/designs/filament-monitor
img_1221

@MarcusWolschon

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MarcusWolschon Jun 16, 2016

You seem to have a trivial patch at
https://docs.google.com/viewer?a=v&pid=sites&srcid=ZGVmYXVsdGRvbWFpbnx0dW5lbGxkZXZ8Z3g6Mjg3Nzk2MzQzNTQyNjJmMA

however since it mentions the RAMPS board, it is unclear if this is compatible with the UM2/UM2+

MarcusWolschon commented Jun 16, 2016

You seem to have a trivial patch at
https://docs.google.com/viewer?a=v&pid=sites&srcid=ZGVmYXVsdGRvbWFpbnx0dW5lbGxkZXZ8Z3g6Mjg3Nzk2MzQzNTQyNjJmMA

however since it mentions the RAMPS board, it is unclear if this is compatible with the UM2/UM2+

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lmartinking Jul 14, 2016

I thought this might help people: https://github.com/lmartinking/arduino-filament-monitor

I wrote a simple arduino firmware for a monitor made by a friend of mine.

It will bring a control pin high or low (depending on config) when it detects filament not actually moving.

lmartinking commented Jul 14, 2016

I thought this might help people: https://github.com/lmartinking/arduino-filament-monitor

I wrote a simple arduino firmware for a monitor made by a friend of mine.

It will bring a control pin high or low (depending on config) when it detects filament not actually moving.

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MarcusWolschon Jul 20, 2016

I made a filament monitor using OctoPrint that does not require any firmware modification and offers a number of advanced features (like telling you how much filament is actually left).
https://github.com/MarcusWolschon/UltimateFilamentSensor/

MarcusWolschon commented Jul 20, 2016

I made a filament monitor using OctoPrint that does not require any firmware modification and offers a number of advanced features (like telling you how much filament is actually left).
https://github.com/MarcusWolschon/UltimateFilamentSensor/

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